Foldable antenna



FIG. 1 is a top, front and left side isometric view of a foldable antenna showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a top, front and left side isometric view thereof, shown in a down position. 

The ornamental design for the foldable antenna, as shown and described. 